Belt-guide.



SAMUEL D. FELSING, OF OROOKSTON, MINNESOTA, ASSIGNOR TO THE MAPLEBAY WIND STAOKER COMPANY, OF CROOKSTON, MINNESOTA, A CORPORATION.

BELT-GUIDE.

Specification of Letters Patent.

Patented March 31, 1908.

Application filed May 17, 1906. Serial No. 317,354.

The invention seeks to rovide an attachment which may be suitab y mounted on the threshing or other similar machine by which the belt will be properly guided onto the drive pulley of the machine, even though the driving pulley of the engine may be somewhat out of line with the pulley on the ma chine. The attachn'ient obviates the difficulty of )lacing the engine and machine exactly in line and furthermore prevents the lateral displacement of the belt by the wind.

The invention consists in the features of construction, combinations and arrangements of parts hereinafter set forth, illustrated in the accompanying drawing and more particularly pointed out in the appended claims.

In the drawings, Figure 1 is a side View of the improved attachment showing the drive pulley of a threshing or like machine, and a portion of the drive belt. Fig. 2 is a'front view of the attachment. Fig. 3 is a plan view thereof. Fig. 4 is a view similar to Fig. 2 showing the attachment in use as a belt reel. Fig. 5 is a detail section 011 the line 55 of Fig. 3. j

p The improved attachment comprises a suitable bracket or supporting member 10 which is' adapted to be bolted in upright position on the frame of the machine. At its upper ed e the bracket is provided with a horizontal off-set ledge 11 upon which is mounted a socket member 12. The socket member 12 is provided at one end with a boss within which is journaled the upright spindle or pivot pin 13. 'At its upper end the pivot in or spindle 13 carries the U-shaped idler 'rame or carrier 14. The idler pulley 15 is j ournaled in the carrier or frame 14 upon a shaft 16 extending between the side arms of the frame. Pulleyshaft 16 is at right angles with the spindle or pivot pin 13.

The drive belt 17 (see Fig. 1) passes over the idler pulley 15 of the guiding attachment and onto the drive pulley 18 of the machine. The socket member 12 is provided with a cross slot 19 (see Fig. 5) through which a securing bolt 20 extends. The lower end of the bolt may be set within any one ofa series of holes 21 upon a horizontal ledge 11 of the bracket 10. By this means the socket member 12 is adjustably secured to the bracket and may be placed thereon in proper position to hold the idler pulley 15 in exact line with the drive pulley 18.

A pair of arms 22 are pivoted at their inner ends upon the cross shaft 16 of the idler frame between the ends of the pulley 15 and the side arms of the frame. At their outer ends the arms 22 are connected by a transverse, flat bar 23 and are provided with upwardly projecting pins or pintles 24 upon which a pair of guide rolls 25 are journaled. These rolls are preferably provided at their upper ends with projecting flanges 26. A

roller 27 of small diameter is also preferably journaled between the outer ends of the arms 22 and outside of the cross bar 23 upon a cross pintle 28. The pintles 2 1 may be set in different holes 24 to accommodate belts of different widths.

A curved or segment shaped arm 29 is secured by a screw 30 to one of the side arms of theidler frame 14 below the shaft 16, and this arm 29 extends through an off-set lug 31 on the side of the adjacent arm 22. A set screw 32 threaded through the lug 31, engages 'the arm 29 and holds the swinging arms 22 and guide rolls carried thereby in desired adjusted position. The curved supporting arm 29 is concentric with the shaft 16 upon which the side arms 22 are pivoted.

The belt as shown, passes over the horizontal guide roll 27 and between the vertical guide rolls 25, but below the flanges 26 thereon thence the belt passes over the idler pulley 15 and around the drive pulley 18 of the machine. If the engine pulley is not exactly in line with the drive pulley 18 or if the belt is blown to one side by the wind the engagement of the edges of the belt with the guide pulleys 25 will so turn the idler pulley 15 that the belt will nevertheless be properly guided onto the drive pulley 18, and any tendency of the belt to shift laterally off of the pulley 18 will be overcome. The roller 27 below the belt and the flanges 26 on the rollers 25 prethe belt from be- The arms 22 carrybe adjusted in pos1 tion so as to properly engage the belt without wear as it passes over the idler pulley 15,

even though the engine and machine are on different levels. That is rolls may be adjusted to properly engage the to say, the guide belt when the latter passes over the guide pulley at different angles pulley frame.

I The bracket 10 is provided extending arms 10 between the forwardly to the axis of the with a pair of outer ends of which is journaled a reel shaft dinally through the arms 10 The shaft is mounted to slide longituand is provided on one endwith a cross arm 34 having a pin or handle 35 by which the reel may be rotated. The arm 34 is 37 is secured to the oppos also provided on its inner face with a pin or stud 36 on which the end of the belt may be hooked.

A ratchet ite end of the belt reel shaft 33 by a pin 38 which is arranged to engage any reel shaft.

laterally from the position that shown in Fig. 4,

one of a series of holes 39 in the When the reel shaft is shifted shown in Fig. 2 to the ratchet wheel 37 on the shaft will be brought against one of the side arms 10 of the .30 ratchet.

bracket and a holding dog 40 upon the side arm will engage the INhen the belt reel is not in use it is pushed in out of the way,

as shown in Fig.

2. WVhen it is desired to wind the belt on the reel, the

ratchet 37 is so adjusted on the reel shaft 33 that the latter may be drawn out sufficiently to space the cross bar 34 at a distance from the side of the bracket 10 V of the belt. The end 40 up by rotating the reel. position it prevents the equal to the width of the belt is then hooked at the end of the stud 36 and Wound WVhen the belt is in lateral movement of the reel shaft so that the ratchet 37 is held in engagement with the dog 40 and the latter will prevent the unwinding of the belt until it is lifted from engagement with the ratchet.

It is obvious that numerous changes may be made in the details of structure set forth without departure from the essentials of the invention as defined in the claims.

I Iavlng described my 1nvent1on,

desire to secure by Letters what I guide, the combiacket, of a pulley swing freely in said bracket, a pulley adapted to receive a flat belt journaled in said frame,

the axes of said frame and pulley being in the same plane but frame and arranged at one at right angles to each other, members mounted on said swinging pulley a pair of guide side of said pulley and out of line with the axis of said frame and engaging the edges of SS in advance of said pulley,

the belt at a point whereby the pressure of the belt against one or the other of said guide members will shift said pulley frame and pulley, said guide members being adjustable on said pulley frame about the axis of the pulley, whereby they will properly engage the edges of the belt when the latter passes on to the pulley at different angles to the axis of the pulley frame and means for securing said guide members in adjusted po sition on said pulley frame, substantially as described.

2. In an automatic belt guide, the combination with a suitable bracket, of a pulley frame journaled in said bracket, a ulley adapted to receive a flat belt journa ed in said frame, the axes of said pulley and said frame lying in the same plane but at right angles to each other, a support mounted on said swinging pulley frame and projecting laterally therefrom, a pair of guide rolls journaled on said support at one side of said pulley and at right angles to the axis thereof, said guide rolls being arranged to engage the opposite side edges of the belt at a point in advance of said pulley, said support and the guide rolls journaled thereon being adjustable on said swinging pulley frame about the axis of said pulley, whereby the guide rolls will properly engage the edges of the belt when the latter passes onto the pulley at different angles to the axis of the ulley frame and means for securing the said suport in adjusted position upon said pulley frame, substantially as described.

3. A belt guide comprising a suitable bracket, a pulley frame journaled to swing freely in said bracket, a ulley adapted to receive a flat belt journa ed in said frame at right angles to the axis thereof, a pair of connected arms pivotally mounted at their inner ends u on the shaft of said pulley, means adjustab y connecting said arms to the pulley frame and guide rolls mounted on said arms at one side of said pulley and arranged to en gage the 0 posite edges of thebelt in advance of said pu ley, whereby the pressure of the belt upon one or the other of said guide rolls will automatically shift said pulley frame and pulley, substantially as described.

4. A belt guide comprising a suitable bracket, a pulley frame pivoted on said bracket, a pulley journaled in said frame, a pair of arms connected at their outer ends and pivoted at their inner ends upon the shaft of said pulley, guide rolls journaled on the outer ends of said arms for engaging the edges of the belt, and means for adjustably connecting said arms to the pulley frame comprising a curved arm concentric with the pulley shaft fixed at one end to one of said parts and adjustably secured to the other of said parts.

5. In an automatic belt guide, the combination with a suitable bracket, of a pulley frame journaled to swing freely upon a vertical axis in said bracket, a pulley adapted of different widths, substantially as dcto receive a flat belt j ournale in said frame scribed.

'upon a horizontal axis, the axes of said frame 7. A belt uide comprising a suitable and said ulley being arranged in the same bracket, a pulley frame journaled to swing vertical p ane, a pair of connected supportfreely in said bracket, a ulley ada ted to reing arms secured to and laterally projecting ceive a flat belt journa ed in sai frame at from said frame, guide rolls journaled on right angles to the axis thereof, a pair of vertical axes on the outer ends of said arms arms pivotally mounted at their inner ends and arranged to engage the opposite edges of upon the shaft of said pulley, a air of the belt, said rolls having flanges at their upguide rolls for engaging the edgesof t 1e belt per ends above the belt, a horizontal cross journaled on the outer ends of said arms, a roll journaled between the ends of said arms cross roll j ournaled between the ends of said and arranged to extend beneath the belt, arms and arranged to extend beneath the said guide rolls and said horizontal cross roll belt, said guide rolls and said cross roll being being arranged at one side of said pulley to arranged at one side of said pulley and at one en age the belt at a oint in advance of the side of the axis of said pulley frame, whereby pulley, said arms an said guide rolls carried the lateral pressure of the belt against one 60,

thereby being adjustable on said ulley or the other of said guide rolls will autoframe in vertical direction to properly enmatically shift said pulley frame and pulley gage the belt when the latter passes to the and means for adjustably connecting said pulley at different angles to the axis of the arms to the pulley frame, substantially as pulley frame and means for securing said described. sup orting arms in adjusted position on 8. A belt "uide comprising a suitable saic swinging pulley frame, substantially as bracket, a pulley frame ournaled to swing described. freely in said bracket, a pulley journaled on 6. In an automatic belt guide, the combisaid frame, the axes of said pulley frame and nation with a suitable bracket, of a pulley pulley lying in the same plane but at right frame journaled to swing freely on avertical angles to each other, a pair of connected axis in said bracket, apulley adapted to enarms pivoted at their inner ends upon the gage a flat belt j ournaled in said frame upon shaft of said pulley, means for adjustably sea horizontal axis, a support mounted on and curing said arms to said pulley frame and a laterally projecting from said swinging ulley pair of guide rolls journaled on said arms and frame and a pair of guide rolls j ourna ed on arranged at one side of said pulley and out of vertical axes on the outer end of said support line with the axis of said pulley frame and at one side of said ulley to engage the oppoengaging the side edges of the belt in advance site ed es of the be t at a point in advance of of said pulley, whereby lateral pressure of the the pulley, said support being adjustable on belt against one or the other of said guide said pulley frame in vertical direction, whererolls will automatically shift said pulley and by the guide rolls will properly engage the pulley frame, substantially as described.

belt when it passes on to sai pulley at diifer- SAMUEL D. FELSIN G. ent angles to the axis of the pulley frame and Witnesses: said guide rolls being laterally adjustable GEORGE F. CARPENTER,

upon said support to properly engage belts JOHN J. FLYNN. 

